1 // SPDX-License-Identifier: GPL-2.0+
3  *	drivers/net/phy/broadcom.c
13 #include "bcm-phy-lib.h"
15 #include <linux/phy.h>
20 	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
23 	((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
25 MODULE_DESCRIPTION("Broadcom PHY driver");
33 	/* handling PHY's internal RX clock delay */  in bcm54xx_config_clock_delay()
36 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||  in bcm54xx_config_clock_delay()
37 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {  in bcm54xx_config_clock_delay()
38 		/* Disable RGMII RXC-RXD skew */  in bcm54xx_config_clock_delay()
41 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in bcm54xx_config_clock_delay()
42 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {  in bcm54xx_config_clock_delay()
43 		/* Enable RGMII RXC-RXD skew */  in bcm54xx_config_clock_delay()
51 	/* handling PHY's internal TX clock delay */  in bcm54xx_config_clock_delay()
53 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||  in bcm54xx_config_clock_delay()
54 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {  in bcm54xx_config_clock_delay()
58 	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||  in bcm54xx_config_clock_delay()
59 	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {  in bcm54xx_config_clock_delay()
76 	if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {  in bcm54210e_config_init()
92 	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {  in bcm54612e_config_init()
110 	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&  in bcm54616s_config_init()
111 	    phydev->interface != PHY_INTERFACE_MODE_1000BASEX)  in bcm54616s_config_init()
126 	/* Select 1000BASE-X register set (primary SerDes) */  in bcm54616s_config_init()
142 	val |= phydev->interface == PHY_INTERFACE_MODE_SGMII ?  in bcm54616s_config_init()
210 		/* Clear bit 9 to fix a phy interop issue. */  in bcm54xx_phydsp_config()
216 		if (phydev->drv->phy_id == PHY_ID_BCM50610) {  in bcm54xx_phydsp_config()
250 	/* Abort if we are using an untested phy. */  in bcm54xx_adjust_rxrefclk()
274 		if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {  in bcm54xx_adjust_rxrefclk()
283 	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))  in bcm54xx_adjust_rxrefclk()
288 	if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) {  in bcm54xx_adjust_rxrefclk()
306 	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))  in bcm54xx_adjust_rxrefclk()
339 	    (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))  in bcm54xx_config_init()
359 		/* For BCM54810, we need to disable BroadR-Reach function */  in bcm54xx_config_init()
373 	/* For non-SFP setups, encode link speed into LED1 and LED3 pair  in bcm54xx_config_init()
406 	/* Upon exiting power down, the PHY remains in an internal reset state  in bcm54xx_resume()
418 	/* Disable BroadR-Reach function. */  in bcm54811_config_init()
429 	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {  in bcm54811_config_init()
442 	struct device_node *np = phydev->mdio.dev.of_node;  in bcm5481_config_aneg()
451 	if (of_property_read_bool(np, "enet-phy-lane-swap")) {  in bcm5481_config_aneg()
452 		/* Lane Swap - Undocumented register...magic! */  in bcm5481_config_aneg()
471 	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);  in bcm54616s_probe()
473 		return -ENOMEM;  in bcm54616s_probe()
475 	phydev->priv = priv;  in bcm54616s_probe()
481 	/* The PHY is strapped in RGMII-fiber mode when INTERF_SEL[1:0]  in bcm54616s_probe()
482 	 * is 01b, and the link between PHY and its link partner can be  in bcm54616s_probe()
483 	 * either 1000Base-X or 100Base-FX.  in bcm54616s_probe()
484 	 * RGMII-1000Base-X is properly supported, but RGMII-100Base-FX  in bcm54616s_probe()
492 		/* Bit 0 of the SerDes 100-FX Control register, when set  in bcm54616s_probe()
493 		 * to 1, sets the MII/RGMII -> 100BASE-FX configuration.  in bcm54616s_probe()
494 		 * When this bit is set to 0, it sets the GMII/RGMII ->  in bcm54616s_probe()
495 		 * 1000BASE-X configuration.  in bcm54616s_probe()
498 			priv->mode_1000bx_en = true;  in bcm54616s_probe()
500 		phydev->port = PORT_FIBRE;  in bcm54616s_probe()
508 	struct bcm54616s_phy_priv *priv = phydev->priv;  in bcm54616s_config_aneg()
512 	if (priv->mode_1000bx_en)  in bcm54616s_config_aneg()
525 	struct bcm54616s_phy_priv *priv = phydev->priv;  in bcm54616s_read_status()
528 	if (priv->mode_1000bx_en)  in bcm54616s_read_status()
551 	/* Reset the PHY to bring it to a known state. */  in brcm_fet_config_init()
602 	if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {  in brcm_fet_config_init()
637 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {  in brcm_fet_config_intr()
682 	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);  in bcm54xx_phy_probe()
684 		return -ENOMEM;  in bcm54xx_phy_probe()
686 	phydev->priv = priv;  in bcm54xx_phy_probe()
688 	priv->stats = devm_kcalloc(&phydev->mdio.dev,  in bcm54xx_phy_probe()
691 	if (!priv->stats)  in bcm54xx_phy_probe()
692 		return -ENOMEM;  in bcm54xx_phy_probe()
700 	struct bcm54xx_phy_priv *priv = phydev->priv;  in bcm54xx_get_stats()
702 	bcm_phy_get_stats(phydev, priv->stats, stats, data);  in bcm54xx_get_stats()